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SCREW STOCK'. No. 378,830. Patented Feb. 28, 1888.

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SCREW STOCK.l

No. 378,830. Patented Feb. 28, 188,8.

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EDUARD ENGELS, OF REMSCHEID, AND BRUNO WESSELMANN, OF HAM- BURG, PRUSSIA, GERMANY.

SC REW-STOCK.

SPECIFICATION forming part of Letters Patent No. 378,830, dated February 28, 1888. Application tiled October 13, 1887. Serial No. 252,256. (No model.)

To aZZ whom it may concern.-

Beit known that we, EDUARD ENGELS, a subject of the King of Prussia, residing at Remscheid, in the Kingdom of Prussia, and BRUNO WnssELMANN, a subject of the King of Prussia, residing at Hamburg, in the Kingdom of Prussia and German Empire, have invented new and useful Improvements in Screw- Stocks, of which the following is a specification.

Our invention relates to improvements in stocks for dies such as are used for cutting threads on pipes; and it has Afor its object to provide a stock which permits the dies to be conveniently oiled across their complete depth. Thepec'uliar construction whereby we accomplish this object is fully pointed out in the following specication and claims, and illustrated in the accompanying drawings, in which-- Figure 1 represents a face view of a stock embodying our invention. Fig. 2 is a front view of the same. Fig. 3 is a face view of a modification. Figs. 4 and 5 are detail views showing various methods of securing the diesections. Fig. 6 is a face view of a second modication. Fig. 7 is a transverse section in the plane x x, Fig. 6.

Similar letters indicate corresponding parts.

In the drawings, the letter G designates a housing for receiving the dies, and G G are the arms extending therefrom in the usual manner. The housing G is open at one side, and the side b opposite said opening is slotted longitudinally to receive the ends of the stationary diesection s and the movable carrier a. The die-section s lies flat upon the side g of the housing, and is removably secured, for example, by a pin, t', driven through it and the side b. One end of the carrier a extends into the slot in the side b of the housing, and is pivoted by means. of a pin, i. The die-section s is removably vsecured thereto by' a dovetail joint, as shown in Fig. 1, and may be additionally secured by a pin, t, Fig. 4c, which cured to the diesection s, and acts upon the pivoted carrier. In place of a flat spring, a spiral spring, f', Fig. 3, can be used for the same purpose.

An adjusting screw, d, which extends through the side g of the housing G, engages with the free end of the carrier a. By screwing upon this screw the carrier is moved toward the die s, and thejaur can be adjusted as needed during the operation of cutting a thread on a pipe. As one side of the housing is open, access can be readily had to the dies through their entire depth for oiling the same, whereby the operation of threading a pipe is facilitated.

' In Figs. 6 and 7 We have shown a 'modica tion which adapts the stock for use with diesections containing two or more cheeks-as I II III IVe-for cutting threads in various sizes of pipes. In this form the housing is open on both sides, and the carrier a can be removed and turned about in a position to place over either of the cheeks. Two adjusting-screws d are provided for acting on the carrier a when in either of its positions.

What we claim as new, and desire to secure by Letters Patent, is

1. The combination, with a housing open at one side, of a stationary die-section, a movable carrier adapted to receive a die or cutter arranged in line with the stationary die-see tion, and an adjusting-screw engaging the carrier, substantially as shown and described.

2. The combination, with ahousing open at one side, of a stationary die-section, a pivoted carrier adapted to receive a die or cutter, and our hands and seais in the prcscnceof two suban adjusting-screw engaging the carrier, snbscrbing witnesses.

stantlaily as shown and described. EDUARD ENGELS. [L Sn] 3. The combination with a housiirfr open :it T ,7 T T 5 one side and having the opposite sidsiotted, BRUBO ESSELMABB" LL' S'l of a stationary die-seetion and a carrier, pivoted ab one end in the slot and provided at iis \Vitnesses as to B. fesselmannz W. LUCHT, WILIL L.l WALTER.

cutter, and an adj nstingscrew, substanti ai] y as Io Shown and described.

other end with means for receiving a die or CARL EGGERT, Jr.

In testimony whereof we have hereunto set i 

